xref: /freebsd/lib/libgssapi/gss_release_cred.c (revision a0409676120c1e558d0ade943019934e0f15118d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2005 Doug Rabson
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  *	$FreeBSD$
29  */
30 
31 #include <gssapi/gssapi.h>
32 #include <stdlib.h>
33 #include <errno.h>
34 
35 #include "mech_switch.h"
36 #include "cred.h"
37 
38 OM_uint32
39 gss_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle)
40 {
41 	struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
42 	struct _gss_mechanism_cred *mc;
43 
44 	if (*cred_handle == GSS_C_NO_CREDENTIAL)
45 	    return (GSS_S_COMPLETE);
46 
47 	while (SLIST_FIRST(&cred->gc_mc)) {
48 		mc = SLIST_FIRST(&cred->gc_mc);
49 		SLIST_REMOVE_HEAD(&cred->gc_mc, gmc_link);
50 		mc->gmc_mech->gm_release_cred(minor_status, &mc->gmc_cred);
51 		free(mc);
52 	}
53 	free(cred);
54 
55 	*minor_status = 0;
56 	*cred_handle = GSS_C_NO_CREDENTIAL;
57 	return (GSS_S_COMPLETE);
58 }
59